| Slough to Caguas (Puerto Rico) | 4,188.94 mi (6,741.45 km) |
| Slough to Cahokia (Illinois) | 4,184.76 mi (6,734.72 km) |
| Slough to Calabasas (California) | 5,434.42 mi (8,745.86 km) |
| Slough to Caldwell (Idaho) | 4,835.46 mi (7,781.93 km) |
| Slough to Caledonia (Wisconsin) | 3,896.86 mi (6,271.39 km) |
| Slough to Calera (Alabama) | 4,314.26 mi (6,943.12 km) |
| Slough to Calexico (California) | 5,412.94 mi (8,711.28 km) |
| Slough to Calhoun (Georgia) | 4,174.22 mi (6,717.76 km) |
| Slough to California (Maryland) | 3,651.06 mi (5,875.81 km) |
| Slough to California City (California) | 5,350.67 mi (8,611.06 km) |
| Slough to Callaway (Florida) | 4,414.13 mi (7,103.85 km) |
| Slough to Calumet City (Illinois) | 3,939.21 mi (6,339.55 km) |
| Slough to Calverton (Maryland) | 3,635.44 mi (5,850.68 km) |
| Slough to Camano (Washington) | 4,742.73 mi (7,632.69 km) |
| Slough to Camarillo (California) | 5,441.13 mi (8,756.65 km) |
